Spectrum analyzers display the amplitude of an input signal versus frequency. Typically the frequency extends along the X-axis and the amplitude extends up the Y-axis of the display. They are used to measure the spectrum of an unknown signal within the frequency range of the particular analyzer ...
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Building a cheap and stable microwave network analyser or oscillator (2-5GHz)
I am interested in measuring the changing dielectric constant of a liquid as it undergoes a process. My background research of scientific articles shows that the 2-5GHz range provides the best ...
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Does it make sense to plot the angle in an signal spectrum analyzer?
I've built a toy oscilloscope with an Arduino, acquiring the samples with the ADC and plotting the spectrum on my computer. The spectrum is the output of the FFT algorithm. You can see a video here of ...
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Spectrum Analyzer: Resolution Bandwidth vs Acquisition Time
Why a smaller resolution bandwidth (RBW) in a swept tuned spectrum analyzer RBW requires longer acquisition time?
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FCC verification and analyzer choice
I am in the design stage of a control surface that controls a remote audio DSP through ethernet. My plan is to target FCC 15 class A. The processor is a pic32 running at 80mhz.
First question, what ...
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556 views
Oscilloscope with FFT or a Spectrum Analyzer?
Could someone explain to me please which aplications demand one and the other and why? As far as I read it's all about the 'db', is it true? And why?
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Input impedance of a GenRad 2512 Spectrum Analyzer [closed]
Does anyone know the input impedance on the General Radio Model 2512 Spectrum Analyzer?
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Generic Active Probes
I need an active probe for use with a spectrum analyzer and oscilloscope. My scope has contacts around the BNC connector for powering a compatible probe. The spectrum analyzer is a different story. ...
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how to use a spectrum analyzer?
This is a new topic to me so it would be great if someone could give me a few pointers. I have an amplifier that I would like to get the frequency response for and a spectrum analyser with Probes A, ...
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110 views
Do comercial spectrum analyzers show a single-sided spectrum?
If I use a Bessell function to compute sidelobe power - do I need to double this power to get the power I will read on the specan?
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Designing a Audio Spectrum Analyzer
I want to design a simple LED audio spectrum analyzer kinda like this.
Which method would be less expensive to do:
Use many filters for each frequency band, depending on how much bands and LEDS I ...
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What's a good spectrum analyzer to learn with?
I'm trying to learn more about building RF circuits and I want to buy a spectrum analyzer. I've looked around on ebay, and a lot of them are really expensive. I'm a student, so I don't have a lot of ...
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301 views
What's the cheapest way to do basic EMI testing?
I need to test that my project will not interfere with radios in the 27 - 72 MHz band.
I can't afford a spectrum analyser. Nor can I afford to buy all tx/rx pairs in between 27 and 72 MHz (27, 35, ...
